Subject: Quattro Pro view file fix. (The patch you've all been waiting for!)

In order to make the commander view Quattro Pro files as spreadsheets,
users have to make two (2) patches to the Norton Commander 3.0.

First, to make the Commander main program execute 123view for a Quattro Pro
file,  NCMAIN.EXE must be patched to replace one of the extensions that
already go into the 123viewer. This means that some other file type will
not be automatically detected to be a spreadsheet. The extensions that
can be replaced are:

   WKS		123 1A, Microsoft Works, VP Planner, Words and Figures
   WK1		123 Release 2
   WRK		Symphony release 1.0
   WR1		Symphony release 1.1
   WKT		Mosaic Twin
   WRQ		Quattro (not the pro)
   XLS          Windows Excel

I don't suggest replacing WKS cause lots of Clone spreadsheets use this
extension. Usually if someone uses Quattro, they won't be using Mosaic
Twin, so that's probably the safest one to replace.

These are located at about the file offset of 136,456 to 136,498, in the
form of "*.WKS", delimited with a zero byte.  Simply change one of these 
to the "*.WQ1" of Quattro Pro, using either the Norton Utilities NU.EXE
or using debug.

Next, to make the 123viewer read the Quattro Pro file without giving an
Invalid Version message 123VIEW.EXE must be patched to replace a version
number. The patches (with offsets and file types) are:

   @3,224 (C98h)	04 04		123 1, 1A
   @3,230 (C9Eh)	05 04		Symphony 1.0
   @3,236 (CA4h)	06 04		123 R2, Symphony 1.1
   @3,242 (CAAh)	0B 0A		Quattro
   @3,248 (CB0h)	07 22		Mosaic Twin

One of these pairs of bytes should be replaced by 20 51 for the version
number to be correct.